GRUNDFOS HOLDING A/S Patent applications |
Patent application number | Title | Published |
20150375294 | SEGMENTED CORE AND METHOD FOR MOLDING AN IMPELLER - A segmented core ( | 12-31-2015 |
20150354575 | PUMP UNIT - A pump assembly has an electric drive motor arranged in a stator housing ( | 12-10-2015 |
20150333593 | ELECTRIC DRIVE MOTOR - An electric drive motor ( | 11-19-2015 |
20150190758 | FILTER ELEMENT - A filter element is provided for a filter element stack. The filter element includes a carrier body ( | 07-09-2015 |
20150017031 | PUMP ASSEMBLY - A pump assembly includes an electric drive motor having a stator and a permanent magnet rotor, at least one impeller connected to the rotor via a rotor shaft, a thrust bearing accommodating axial forces acting on the impeller and rotor shaft in operation, and at least one radial bearing arranged on the rotor shaft. The rotor and stator are designed such that a magnetic axial force, acting in the direction of the rotation axis of the rotor and acting on the rotor in the direction of the inflow direction into the impeller, is produced between the rotor and the stator. The rotor shaft and rotor are mounted displaceably in the axial direction relative to the stator, and with an axial displacement of the rotor shaft in the inflow direction into the impeller, the bearing surfaces of the radial bearing lying opposite one another at least partly disengage. | 01-15-2015 |
20140342397 | Particle Detection Device and Method - The invention relates to a device and a method for detecting particles, in particular parasites, in drinking water adapted to on-line application. In particular, the invention b) relates to a method for detecting parasites in water, said method comprising: Passing at least a part of the water through a filter; Applying indirect sonication with ultrasound to said filter to release parasites which have been collected in said filter without disrupting said parasites; Collecting parasites for detection; and Detecting the collected parasites. This serves to collect parasites in the filter and/or increase the concentration of parasites before the filter and/or disrupt aggregates without disrupting the parasites per se. The invention further relates to a concentration device for filter filtration concentration of particles from a volume of a fluid. The concentration device comprises an ultrasonic transducer that is configured to clean the filter. | 11-20-2014 |
20140328677 | BEARING UNIT - A bearing unit ( | 11-06-2014 |
20140255216 | PUMP SYSTEM - A pump system for a water supply mains has at least one pump device, a pressure detecting sensor at the pressure side of the pump device, a flow detecting sensor of the pump device, several pressure sensor units (D) remote arranged remotely from the pump device in different part regions of the mains, and a pump control device. The control device includes a model formation module designed in each case to produce a model (A) representing pressure loss from the pressure sensor to the position of the respective pressure sensor unit (D), based on several pressure measured values of at least two pressure sensor units (D) for the at least two associated part regions. The control device is designed for regulation of the pump device based on produced models (A), as well as to a corresponding method for regulation of a pump device in a water supply mains. | 09-11-2014 |
20140178211 | METHOD FOR OPERATING A WASTEWATER PUMPING STATION - A method is provided for operating a wastewater pumping station of a wastewater pumping network. The pumping station includes a pump, that starts pumping if a level of a wastewater in a tank exceeds a first wastewater level, and the pump stops pumping if the level of the wastewater in the tank drops below a second level. The method includes determining a magnitude of a parameter (P | 06-26-2014 |
20140124460 | METHOD AND SYSTEM FOR FILTRATION AND FILTRATION CAKE LAYER FORMATION - The present invention relates to a method of filtering a feed and waste water treatment system using the filtration method. The method utilizes a filtration cake for the filtration, which filtration cake is formed by elements contained in a liquid having a different composition than the feed to the filtered. The invention relates in particular to a method for filtering a liquid containing solid particles of different sizes which utilizes a filtration cake formed at least partly and preferably only from particles contained in said liquid containing solid particles of different sizes. The particles of the filtration cake are deposited on a filtration cake support and the method involves separation of the liquid containing solid particles of different sizes into two fractions: one fraction containing solid particles above a certain size and one containing smaller particles, and filtering the fraction containing smaller particles through the filtration cake. According to preferred aspects of the invention, the feed to be filtered is activated sludge supernatant and the filtration cake is formed from floes of an activated sludge mixed liquor. | 05-08-2014 |
20140090731 | DOSING MANIFOLD AND SYSTEM - A dosing system for delivering a dosing fluid includes a dosing manifold having a front panel and a rear panel with a plurality of channels and a plurality of inlet and outlet ports in fluid communication with corresponding channels. The front panel holds a plurality of flow control devices in fluid communication with corresponding channels to control the flow of the dosing fluid in the channels. A dosing pump is in fluid communication with the dosing manifold and is configured to pump the dosing fluid through the dosing manifold. | 04-03-2014 |
20140061126 | METHOD AND SYSTEM FOR FILTRATION AND FILTRATION CAKE LAYER FORMATION - The present invention relates to filtration of liquids, such as water, containing substances that desirably should be removed from the liquids. The invention relates in particular to a filtration cake, being produced in situ of a cleaning system from substances that desirably should be filtered away. Particular preferred embodiments of the present invention relate to treatment of waste water, where an activated sludge is provided, which sludge contains activated sludge flocs. These flocs are accumulated on a fluid penetrable support structure to form a layer of flocs, which subsequently is compressed to form a filter of desired properties. The invention also relates to adapting waste water—or other liquids containing biodegradable substances—to optimised biodegradation and filtration by deflocculating flocs in an activated sludge during or before a biodegradation step and subsequently promoting re-flocculation prior to filtering or other means of biomass separation. | 03-06-2014 |
20140035416 | ELECTRIC MOTOR - An electric motor includes a stator, a rotor and a can arranged between the stator and the rotor, wherein the stator exhibits several stator pole pairs, which are each formed by two adjacent stator poles, which are designed in such a way as to generate oppositely polarized magnetic fields, and wherein the rotor exhibits a plurality of magnetic rotor poles distributed over the circumference, and is configured in such a way as to enable a magnetic flux between two adjacent rotor poles, as well as a pumping set with such an electric motor. | 02-06-2014 |
20130328459 | WET-RUNNING ELECTRIC MOTOR AND PUMP UNIT - A wet electric motor for a pump includes a stator casing, a stator arranged in the stator casing, and a can, wherein first resilient pressure elements are arranged inside the stator casing in such a way as to exert a compressive force in the direction of the can on at least parts of the stator, as well as to a pumping set with such a wet electric motor. | 12-12-2013 |
20130300330 | PUMP UNIT - A pumping set includes an electric motor, which exhibits a stator, a rotor and a can arranged between the stator and rotor, and at least one impeller linked with the rotor, wherein the electric motor has engine electronics designed for electronically commutating the electric motor, and the electric motor and commutation are configured in such a way that, in a state where the rotor chamber inside the can and/or the impeller is not filled with liquid, the rotor is shut down. | 11-14-2013 |
20130294949 | PUMP UNIT - A pumping set includes an electric drive motor, which exhibits a stator casing and at least one terminal box connected with the latter, wherein the interior of the terminal box exhibits at least one separating wall, which divides an interior space of the terminal box into at least one electronics area with electronic components and a connection area, wherein the connection area incorporates both electrical connections for at least one connection line along with contacts for establishing an electrical connection with electrical or electronic components arranged inside the stator casing. | 11-07-2013 |
20130294910 | WASTE WATER PUMP - A waste water pump includes an impeller ( | 11-07-2013 |
20130236328 | AXIAL FLOW IMPELLER - An axial flow impeller includes a hub, at least three base blades, and a cover blade detachably mounted to each base blade. When the impeller is applied in a medium environment having a high density and viscosity, the impeller will meet the requirement only by virtue of the base blade with the cover blade being removed. When the impeller is applied in a medium environment having low density and viscosity, the cover blade can be mounted in the front and/or rear of the base blade in order to improve the efficiency of the impeller. In this case, the consumption of electrical power can be reduced significantly while producing an equivalent propulsive force, thereby being advantageous for energy conservation. Therefore, the impeller can be adaptable to different medium environments and efficiency requirements, and thus can have good adaptability, need minimal investment cost and can be convenient to use. | 09-12-2013 |
20130164136 | IMPELLER - An impeller ( | 06-27-2013 |
20130164125 | CENTRIFUGAL PUMP - A centrifugal pump ( | 06-27-2013 |
20130098482 | WASTE WATER LIFTING INSTALLATION - A waste water lifting installation has a collection container and a pump assembly. The pump assembly is fastened on a flange plate which closes an opening on the upper side of the collection container. The flange plate, on a first side edge which faces the middle region of the waste water lifting installation, is releasably fixed on the collection container with a single locking element. | 04-25-2013 |
20130074950 | WASTE WATER LIFTING INSTALLATION - A waste water lifting installation includes a collection container ( | 03-28-2013 |
20130074947 | CONDENSATE LIFTING INSTALLATION SYSTEM - A condensate lifting installation system is provided having a lifting unit ( | 03-28-2013 |
20130052039 | PUMP ASSEMBLY - A pump assembly includes a centrifugal pump driven by an electric motor and is provided with a time display which is formed by an annular row of light diodes, wherein a time is assigned to each light diode. | 02-28-2013 |
20130002060 | STATOR - The stator of an electric motor includes a stator lamination bundle which is provided with windings which pass through this and which in the regions projecting beyond the stator lamination bundle form end-windings. An end-winding shielding which is electrically conductively connected to the stator lamination bundle is provided. This shielding is formed by segmented and distanced shielding sections which in each case shield at least one end-winding completely or partly. | 01-03-2013 |
20120151950 | HEAT TRANSFER SYSTEM - A heat transfer system includes a heat exchanger configured to transfer heat between a first fluid and a second fluid. The heat exchanger includes an outer sleeve and a microchannel unit. The outer sleeve has an interior surface defining a cavity and an exterior surface configured to be in direct thermal communication with the first fluid. The microchannel unit is received in the cavity. The microchannel unit has a plurality of microchannels configured to receive the second fluid therein and be in direct thermal communication with the second fluid. The microchannel unit has an exterior surface in direct thermal communication with the interior surface of the outer sleeve to transfer heat therebetween. At least one of the interior surface of the outer sleeve and the exterior surface of the microchannel unit has grooves defining breach channels for the first fluid or the second fluid should a breach in the outer sleeve or the microchannel unit occur. | 06-21-2012 |